Research Guides: Astronomy: Find Reference Sources and Data

Data Sources and Almanacs

Astronomical Applications Department (U.S. Naval Observatory)
Provides rise/transit/set times for the sun, moon, planets and stars worldwide; provides sunrise/sunset azimuths, and transit altitudes.
Planetary Data System (NASA)
Search, browse and explore planetary data sets covering different aspects of planetary science, including: Atmospheres, Geosciences, Cartography and Imaging Sciences, Planetary Plasma Interactions, Ring-Moon Systems, and Small Bodies.
NASA/IPAC Extragalactic Database
Use this searchable database to find multiwavelength data (from gamma rays through radio frequencies) for extragalactic objects integrated from hundreds of large sky surveys and tens of thousands of research publications. Provides links to multiple data sources, including NASA astrophysics mission archives (IRSA, HEASARC, MAST); the astrophysics literature via ADS; and other data centers around the world.